Bracket for Orthodontic

Abstract

A bracket for orthodontic use has a base plate, a tie wing and an arch wire fitting slot. More specifically, a pair of tie wings having a pair of long and short wing pieces, i.e., a long piece and a short piece, are erected on the rectangular base plate and spaced apart, and the arch wire fitting slot is formed by the spaced apart portion. A pair of wing pieces of the tie wing are provided to project in the vertical direction with distal ends directed downward, and constituted the wing pieces include a long piece and a short piece. A recessed guide groove is provided in a vicinity of an end of the long piece.

1 . An orthodontic bracket, comprising:
 a base plate having opposing first and second side edges a bottom surface for attachment to a tooth, and a top surface;   first and second wing support members provided extending from said top surface and respectively having first sides which are positioned apart from and opposing each other to define an arch wire groove therebetween and top support member edges running along said arch wire groove, said wing support members having opposing support member first ends defining a first end of said arch wire groove therebetween, said wing support members having opposing support member second ends defining a second end of said arch wire groove therebetween, said tie wing support members being disposed respectively adjacent along said first and second side edges of the base plate; and   the wing support members each respectively having second sides opposite said first sides thereof, said second sides each having first and second wing prongs extending outward therefrom and curving toward said base plate and configured to engage with a fixing wire of the arch wire in a cross-stitch-type manner, said first wing prongs being longer than said second wing prongs.   
   
   
       2 . The orthodontic bracket according to  claim 1 , wherein:
 said first wing support member has said first wing prong member disposed offset from said support member first end of said first wing support member; and   said second wing support member has said first wing prong member disposed offset from said support member second end of said second wing support member such that said first wing prong members are disposed proximate diagonally opposed corners of said base plate.   
   
   
       3 . The orthodontic bracket according to  claim 2 , wherein:
 said first wing support member has said second wing prong member disposed even with said support member second end of said first wing support member; and   said second wing support member has said second wing prong member even with said support member first end of said second wing support member such that said second wing prong members are disposed proximate diagonally opposed corners of said base plate.   
   
   
       4 . The orthodontic bracket according to  claim 3 , wherein:
 said first wing support member has a concaved surface portion between said first wing prong member and said support member first end of said first wing support member, said concaved surface portion being configured to engage said fixing wire; and   said second wing support member has a concaved surface portion between said first wing prong member and said support member second end of said second wing support member, said concaved surface portion being configured to engage said fixing wire.   
   
   
       5 . The orthodontic bracket according to  claim 4 , further comprising:
 said fixing wire, said fixing wire being formed in a continuous loop with opposing ends respectively hooked under said first wing prong members and portions of said fixing wire being disposed in said concaved surface portions;   said fixing wire extending over said top support member edges at four places so as to leave said groove ends unopposed by said fixing wire; and   said fixing wire being disposed to extend diagonally between said first wing prong members without engagement with said second wing prong members.   
   
   
       6 . The orthodontic bracket according to  claim 2 , wherein:
 said first wing support member has a concaved surface portion between said first wing prong member and said support member first end of said first wing support member, said concaved surface portion being configured to engage said fixing wire; and   said second wing support member has a concaved surface portion between said first wing prong member and said support member second end of said second wing support member, said concaved surface portion being configured to engage said fixing wire.   
   
   
       7 . The orthodontic bracket according to  claim 6 , further comprising:
 said fixing wire, said fixing wire being formed in a continuous loop with opposing ends respectively hooked under said first wing prong members and portions of said fixing wire being disposed in said concaved surface portions;   said fixing wire extending over said top support member edges at four places so as to leave said groove ends unopposed by said fixing wire; and   said fixing wire being disposed to extend diagonally between said first wing prong members without engagement with said second wing prong members.